# Calculate Tariff

### **Green Energy Made Easy**

**Switch and save in only 5 minutes!**

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### **Breakups Are Never Easy… Oh Wait, With Ostrom They Are!**

Lean back and enjoy: When switching to us, we handle all the details with your old provider.

##### **Seamless & Carefree**

We manage the cancellation and handover process so you can stay lit at all times!

##### **Uninterrupted Service**

We'll sort everything right away! Even after setup, we’re here to make sure everything works smoothly.

##### **We Deal With Your Ex**

Let Ostrom do it for you: We'll let your old provider know you’ve seen the light.

### Energy At Your Fingertips

Because let’s be honest: it’s overdue. Simply sign up on our website and manage everything in our app. No need for "email templates" or translation apps!

#### All In One Place

With the Ostrom app you can do it all:

- Track your consumption and meter readings  
- Manage payments and invoices  
- Control your smart devices

#### On-Demand Support

Our team responds quickly – much faster than elsewhere! Got questions? Just ask us in the chat.

#### English? German? You Choose!

Deutsche Sprache, schwere Sprache. We're a proud German startup, but we also know our language ain’t easy. To maintain full transparency we offer everything - from signup to contract - in English as well.

##### Test The App For Free On Demo Mode - Download Today!

### What Our Customers Are Saying

We take pride in providing excellent customer service. But don’t just take our word for it: Hear it from customers who’ve already made the move to Ostrom.

- 5 out of 5 star rating on Trustpilot

**[I’m using the service since January 2026, I faced some hiccups at start but support t...**  
**Review by**  
sachin desai,  
3 days ago  
**Click to view the full review on Trustpilot**

- 5 out of 5 star rating on Trustpilot

**[I have never had an issue and the service has been beyond and above!**  
**Review by**  
Kunde,  
July 9  
**Click to view the full review on Trustpilot**

- 5 out of 5 star rating on Trustpilot

**[This service provider has been one of the best I’ve encountered since arriving in Ger...**  
**Review by**  
Alokdyut Das,  
July 8  
**Click to view the full review on Trustpilot**

- 5 out of 5 star rating on Trustpilot

**[It is very easy to become a customer, everything is in english, including the app whi...**  
**Review by**  
Radoje Albijanic,  
July 5  
**Click to view the full review on Trustpilot**

- 5 out of 5 star rating on Trustpilot

**[Food good I think**  
**Review by**  
Vysakh Salil,  
July 2  
**Click to view the full review on Trustpilot**

- 5 out of 5 star rating on Trustpilot

**[Satisfied! 😊**  
**Review by**  
Pacifico Jr. Carvajal,  
July 1  
**Click to view the full review on Trustpilot**

- 5 out of 5 star rating on Trustpilot

**[Relatively transparent and easy to use **  
**Review by**  
Moselle,  
June 27  
**Click to view the full review on Trustpilot**

- 5 out of 5 star rating on Trustpilot

**[It was fast and with cheap rate. All good**  
**Review by**  
sharon,  
June 25  
**Click to view the full review on Trustpilot**

- 5 out of 5 star rating on Trustpilot

**[The sign up and onboarding process is seamless and easily understandable, and the cus...**  
**Review by**  
Customer,  
June 25  
**Click to view the full review on Trustpilot**

- 5 out of 5 star rating on Trustpilot

**[It was so easy to make contrcat **  
**Review by**  
hataw ahmad,  
June 21  
**Click to view the full review on Trustpilot**

- 5 out of 5 star rating on Trustpilot

**[Easy and in English. Lovely.**  
**Review by**  
Benjamin,  
June 19  
**Click to view the full review on Trustpilot**

- 5 out of 5 star rating on Trustpilot

**[The process was easy and the customer service was excellent. Overall very Good and sm...**  
**Review by**  
Chetan,  
June 19  
**Click to view the full review on Trustpilot**

- 5 out of 5 star rating on Trustpilot

**[Excellent with the process, 💯 online **  
**Review by**  
Abdul-raheem,  
June 17  
**Click to view the full review on Trustpilot**

- 5 out of 5 star rating on Trustpilot

**[The switch was swift and easy. No hassle , the app is really useful and handy.**  
**Review by**  
Mithun Sekhar,  
June 16  
**Click to view the full review on Trustpilot**

- 5 out of 5 star rating on Trustpilot

**[App is super user friendly **  
**Review by**  
Senthilvel Nataraj,  
June 16  
**Click to view the full review on Trustpilot**